/Engine/Plugins/Developer/Concert/ConcertSync/ConcertSyncClient/Source/ConcertSyncClient/Public/IConcertSyncClient.h
Queries the list of opaque actions that could be performed on the specified client session, like turning the client presence visibily on/off in the map. The actions are usually mapped to buttons and are a way to provide extra functionalities while keeping the implementation hidden.
void GetSessionClientActions ( const [FConcertSessionClientInfo](API\Plugins\Concert\FConcertSessionClientInfo) & InClientInfo, [TArray](API\Runtime\Core\Containers\TArray)< [FConcertActionDefinition](API\Plugins\ConcertSyncClient\FConcertActionDefinition) > & OutActions ) const